Morocco's Boundary in the Guir-Zousfana River Basin Frank E. Trout African Historical Studies · Volume 3, Issue 1 (1970) · pp. 37 DOI: 10.2307/216479 Abstract No abstract Article information Published1 January 1970 Languageen PublisherJSTOR LicenseNo license URL DOI10.2307/216479 Journal ISSN0001-9992